发明授权
- 专利标题： Polyvinyl acetal and its use
- 专利标题（中）： 聚乙烯缩醛及其用途
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申请号： US10620465申请日： 2003-07-17
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公开(公告)号： US06992130B2公开(公告)日： 2006-01-31
- 发明人: Takeshi Kusudou , Yousuke Kumaki , Naoki Fujiwara
- 申请人： Takeshi Kusudou , Yousuke Kumaki , Naoki Fujiwara
- 申请人地址： JP Kurashiki
- 专利权人： Kuraray Co., Ltd.
- 当前专利权人： Kuraray Co., Ltd.
- 当前专利权人地址： JP Kurashiki
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权： JP2002-214094 20020723
- 主分类号： C08L29/04
- IPC分类号： C08L29/04
摘要：
The invention provides a polyvinyl acetal having a degree of acetalization of from 45 to 80 mol %, which is obtained through acetalization of a polyvinyl alcohol that contains from 1 to 15 mol % of α-olefin units and has a 1,2-glycol bond content of from 1 to 3 mol %, a degree of polymerization of from 100 to 2000 and a degree of hydrolysis of from 80.0 to 99.99 mol %. The polyvinyl acetal has good waterproofness and good compatibility with plasticizer. Having the advantages, it is favorable for interlayer films for laminated glass, binders for ceramic forming, binders for ink or paint, and coating liquids for thermally-developable photographic materials.
公开/授权文献
- US20040024137A1 Polyvinyl acetal and its use 公开/授权日：2004-02-05
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